/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package cl.tienda.control;

import cl.tienda.modelo.Usuario;
import cl.tienda.modelo.Producto;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Vector;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Alexander
 */
public class ServletInicioSesion extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    private Vector<Usuario> usuarios;
    private Vector<Producto> productos;
    
    public void inicializarUsuarios() { 
        this.usuarios = new Vector<Usuario>();  
        Usuario user1 = new Usuario(1, "Rodrigo", "Ruiz", "rruizh", "1234", "cliente"); 
        Usuario user2 = new Usuario(2, "Rene","Valderas","rvalderas","1234","empleado"); 
        this.usuarios.add(user1); 
        this.usuarios.add(user2); 
    } 
        

    public void inicializarProductos() { 
        this.productos = new Vector<Producto>(); 
            Producto prod1 = new Producto(1, "Televisor Samsung", 10, 12.50f); 
            Producto prod2 = new Producto(2, "Usb Kingston de 2Gb", 20, 40f); 
            Producto prod3 = new Producto(3, "Laptop HP DV7000", 15, 7899.99f);
            this.productos.add(prod1); 
            this.productos.add(prod2); 
            this.productos.add(prod3); 
    }      
    
    
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /* TODO output your page here. You may use following sample code. */
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet ServletInicioSesion</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet ServletInicioSesion at " + request.getContextPath() + "</h1>");
            out.println("</body>");
            out.println("</html>");
        } finally {            
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    
    
  

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
            String usuario = request.getParameter("txtuser"); 
            String clave = request.getParameter("txtclave"); 
            String direccion="error.html";           
            HttpSession sesion = request.getSession(); 
            if (sesion.isNew()) { 
            sesion = request.getSession(true); 
            sesion.setAttribute("usuarios", usuarios); 
            sesion.setAttribute("productos", productos); 
            } else { 
            usuarios = (Vector<Usuario>) sesion.getAttribute("usuarios"); 
            productos = (Vector<Producto>) sesion.getAttribute("productos"); 
            }              
            for (int i = 0; i < usuarios.size(); i++) { 
            if ((usuarios.get(i).getUsuario().compareTo(usuario) == 0) && 
            (usuarios.get(i).getClave().compareTo(clave) == 0)) { 
            sesion.setAttribute("usuarioInicio", usuarios.get(i));             
            if (usuarios.get(i).getPrivilegio().compareTo("cliente") == 0) { 
            direccion="ServletCConProd"; 
            } else { 
            direccion="ServletEConProd"; 
            } 
            break; 
            } 
            }            
            response.sendRedirect(direccion);         
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
    
    
    @Override 
    public void init(ServletConfig config) throws ServletException { 
           this.inicializarUsuarios(); 
           this.inicializarProductos(); 
    } 
    @Override 
    public void doGet(HttpServletRequest request, HttpServletResponse response) 
    throws ServletException, IOException { 
    doPost(request, response); 
    } 
}
